Midea Cube Dehumidifier Verdict

Who it fits

The Midea Cube MDDM20 fits households that want a mainstream 20L/day smart dehumidifier but dislike emptying a small tank frequently. Its defining feature is the 12L collection tank, paired with Wi-Fi control and manufacturer guidance up to 52m².

That large tank is the reason to consider it over many 20L rivals. The trade-off is specification clarity: Midea does not publish the test temperature and humidity behind the 20L/day figure on its current Australian page, and several workflow details are not clearly stated. If you need a fully specified permanent-drain setup, this is not the easiest model to buy on paper alone.

The practical question is whether you are buying for bucket convenience or for a permanently drained setup. If the dehumidifier will sit away from a suitable drain, Midea's 12L reservoir can materially reduce how often you interrupt a long run. If a hose is available and continuous drainage is a hard requirement, the Midea's biggest advantage becomes less important because that drainage feature is not clearly confirmed in the Australian information we checked.

That makes the MDDM20 unusually easy to shortlist for one specific household problem: you want a connected 20L-class machine but you do not want a small bucket dictating your routine. It is less convincing as a general-purpose answer to every 20L comparison because the missing extraction test condition makes the headline litres-per-day figure harder to line up with rivals such as the ACD220 or LAD308.

For day-to-day ownership, also think about where the machine will stay. The compact Cube footprint is useful, but 15kg means the product makes more sense as a deliberately placed appliance than something you will casually carry from bedroom to laundry every day. Buy the Cube for the oversized reservoir and connected control; do not buy it simply because 20L/day sounds equivalent to every other 20L claim.

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The Appliance Guys

$579

Checked 7 Oct

PIQSY price context

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What changes the decision

Tank size changes the daily workflow

A 12L tank can matter more than a small specification difference when the unit runs for long periods without a drain hose. It reduces how often the collection bucket needs attention compared with the 2–5L tanks common across this launch set.

Treat 20L/day as a manufacturer rating, not a harmonised cross-brand score

Midea states 20L/day, but the current Australian page does not publish the temperature and relative-humidity test condition. That makes the figure useful for understanding the model, but weaker for direct litre-for-litre comparison with brands that publish their test basis.

Smart control is clear; some installation details are not

Wi-Fi and smartphone control are clearly listed. Continuous drainage, laundry mode and an operating-temperature range are not clearly published for this Australian model, so do not assume they are included just because similar dehumidifiers offer them.

The Cube format is compact on the floor, but not especially light

The body is roughly 343mm square and 340mm high, which helps the MDDM20 fit into a relatively compact footprint for a machine carrying a 12L tank. The other side of that design is a 15kg published weight. Treat it as a unit you can reposition deliberately, not as a lightweight dehumidifier you will want to carry between rooms several times a day.

Adjustable fill levels make the oversized tank more flexible

Midea lets you choose 6L, 8L, 10L or 12L fill levels and adds a full-water warning. That makes the oversized reservoir more practical than the headline capacity suggests: you can reduce emptying frequency without always waiting for the bucket to reach its maximum. Because continuous drainage is not clearly confirmed in the Australian information we checked, the large tank remains the most important long-run workflow feature.

Noise and room coverage are useful boundaries, not independent performance scores

Midea publishes 40–43dB(A) high/low lab noise and guidance up to 52m². Those figures are useful for planning where the unit will live, but they do not prove it will be quieter or cover more space than rivals measured under different conditions. The same caution applies to the 20L/day headline: it describes this Midea, but without the test condition it is not a clean litre-for-litre comparison with every competitor.

Warranty context.

Midea states a two-year residential warranty and one year for commercial use. That is useful baseline support, but it is not what separates the MDDM20 from the field. Buy it because the 12L tank and adjustable fill levels solve your emptying routine; treat the warranty as supporting ownership detail rather than the reason to move away from a better-fitting drainage or room-size option.

Who should choose something else

This is not the automatic choice for every dehumidifier shopper. The better route changes when room scale, operating conditions, drainage, filtration or control requirements change.

• Choose AusClimate ACD220 when you want a 20L-class compressor with a published 30°C/80% RH test point, continuous drainage and laundry mode.
• Choose Breville LAD308 when you want two published extraction test points plus Wi-Fi/Bluetooth and continuous gravity drainage.

PIQSY conclusion

Choose the Midea MDDM20 when a very large collection tank and connected control matter more than having every cross-brand comparison field fully resolved.

Choose another route when you need a published extraction test condition, clearly confirmed continuous drainage or laundry mode, or a lighter machine that will move between rooms regularly.